A new approach to morphinans: total synthesis of O-methylpallidinine

…, AH Davidson, DR Summers, A Shenvi

Index: McMurry, John E.; Farina, Vittorio; Scott, William J.; Davidson, Alan H.; Summers, David R.; Shenvi, Ashok Journal of Organic Chemistry, 1984 , vol. 49, # 20 p. 3803 - 3812

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Citation Number: 19

Abstract

Figure 5. The pseudorototational path of the all boat confor- mation in the ccc form with a perspective view on the symmetrical molecules. ... The two trans ring junctions restrict the maximum flex- ibility to some wagging around a higher symmetrical form. The A ring of the BCC form is frozen in a twist con- formation. It is the most stable conformation in this group, although 10.1 kcal/mol higher in energy than the all chair ttt configuration. The BCB, BBB, and BBC forms are ...